Sincerest apologies if this question has been asked, but does anyone have any preferred or recommended vendors? I have googled and see a couple but I wanted to check here first for reputable sources.

You do not mention what product(s) you are looking for. If you are looking for crystals or metal shavings click on the link to Orgone Crystals at the top of the page. If you're looking for resin, most of us here in the US use Sylmar 41 clear casting resin or 3M resin from the paint dept. at Lowe's or Home Depot.

The search function is your friend. Tons of information at your fingertips. You can use the "search" at the top of the page or Google "Warrior Matrix + topic".

I admit it took me several months to figure out how to search for the information I needed